The full det's on the Mirella in White:

Chic, minimal, and effortlessly flattering. The Mirella Dress is Ruby at its most refined in striking fresh white midi designed to skim the body in all the right places. Featuring a soft plunge V‑neck (tie for the perfect plunge for you!), and a clean, elongated silhouette, this dress brings understated elegance to any occasion. The fluid drape gives it beautiful movement and the double draw string waist makes it a timeless choice for events where you want to feel polished without overthinking your look.

Perfect for graduations, dinners, work functions, or elevated everyday wear, the Mirella is one of those pieces that always photographs beautifully and suits a wide range of body shapes.

Fabrics:  99% cotton, 1% spandex OEKO-TEX certified

Size: Size on tag - 10. Will fit a size 10 -14 comfortably.  Have seen this dress on a size 10 and a size 14 and it looks great on both with "no excess" bulk material or "too tight" or stretched.  Perfect.